linux-kernel - Re: [PATCH net-next 1/2] net: mdio: of: fix potential NULL pointer derefernce

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Message-ID: <20200131074912.2218d30d@cakuba.hsd1.ca.comcast.net>
Date:   Fri, 31 Jan 2020 07:49:12 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Michael Walle <michael@...le.cc>
Cc:     linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        Richard Cochran <richardcochran@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>
Subject: Re: [PATCH net-next 1/2] net: mdio: of: fix potential NULL pointer
 derefernce

On Thu, 30 Jan 2020 18:44:50 +0100, Michael Walle wrote:
> of_find_mii_timestamper() returns NULL if no timestamper is found.
> Therefore, guard the unregister_mii_timestamper() calls.
> 
> Fixes: 1dca22b18421 ("net: mdio: of: Register discovered MII time stampers.")
> Signed-off-by: Michael Walle <michael@...le.cc>

Applied both, thank you.